CN108277903B - Assembled truss type light steel frame-punched thin steel plate-concrete combined wall - Google Patents

Assembled truss type light steel frame-punched thin steel plate-concrete combined wall Download PDF

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Publication number
CN108277903B
CN108277903B CN201810223338.1A CN201810223338A CN108277903B CN 108277903 B CN108277903 B CN 108277903B CN 201810223338 A CN201810223338 A CN 201810223338A CN 108277903 B CN108277903 B CN 108277903B
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steel
concrete
frame
combined
plate
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CN108277903A (en
Inventor
曹万林
王如伟
殷飞
乔崎云
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Beijing University of Technology
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Beijing University of Technology
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    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B2/00Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
    • E04B2/56Load-bearing walls of framework or pillarwork; Walls incorporating load-bearing elongated members
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28BSHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B1/00Producing shaped prefabricated articles from the material
    • B28B1/14Producing shaped prefabricated articles from the material by simple casting, the material being neither forcibly fed nor positively compacted
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28BSHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B11/00Apparatus or processes for treating or working the shaped or preshaped articles
    • B28B11/24Apparatus or processes for treating or working the shaped or preshaped articles for curing, setting or hardening
    • B28B11/245Curing concrete articles

Abstract

The invention relates to an assembled truss type light steel frame-punched thin steel plate-concrete combined wall and a manufacturing method thereof. According to the invention, the steel tube concrete frame columns, the steel tube concrete frame beams and the wall steel tube concrete truss ribs are combined to form a wall steel tube concrete truss stress system, and form a combined wall steel skeleton together with the punched thin steel plate, so that the integrity of the wall plate is improved, the concrete is poured by supporting a formwork, the assembled truss type light steel frame-punched thin steel plate-concrete combined wall is formed after curing, and the combined wall is assembled to an external structure only through connecting bolts. The assembled combined wall has good bending resistance, shearing resistance and plane external rigidity, and good anti-seismic performance, and meanwhile, the wall boards are produced by factories and assembled on site, so that the common quality problems caused by site construction are effectively solved, the engineering construction efficiency is greatly improved, the engineering labor is reduced, and the assembled combined wall is suitable for being widely popularized and applied in low-multi-layer rural house structures in villages and small towns.

Description

Assembled truss type light steel frame-punched thin steel plate-concrete combined wall
The technical field is as follows:
the invention belongs to the technical field of manufacturing of assembled combined walls in building structure engineering, and particularly relates to an assembled truss type light steel frame-punched thin steel plate-concrete combined wall and a manufacturing method thereof.
Background art:
at present, China is in a novel urbanization and new rural construction brisk development period, and a large amount of new rural construction and urgent new rural reconstruction targets lead simple integrated houses and low-rise fabricated houses to be developed in low-rise multi-storey rural house structures. In the present stage, the beam column frame formed by steel structural members or reinforced concrete structural members is mostly adopted by the integrated house and the fabricated house as a main stress system of the house structure, and the wall body is an external wall panel or a filler wall, so that the integrated house and the fabricated house have the excellent characteristics of convenience in disassembly and assembly, flexibility in layout, short construction period and the like. Meanwhile, as main components of the house structure, the external wall board and the filling wall board can only be used as an enclosure component of the house and can not participate in stress, the problems of low bearing capacity, poor ductility and frequent brittle failure of the house structure exist, the whole house also has the problems of poor stability and poor anti-seismic capacity, and thus the application of the integrated house and the fabricated house in the house is greatly restricted.
The building amount of villages and towns in China accounts for 60% of the total building amount of China, most of the rural houses are located in earthquake-resistant fortification areas, how to reasonably design and utilize the wall bodies, improve the bearing capacity of low-rise integrated houses and prefabricated houses, enhance the earthquake resistance of the low-rise integrated houses and the prefabricated houses, and not influence the advantage of flexible spatial layout of the low-rise integrated houses and the prefabricated houses, the wall bodies with the bearing capacity and the earthquake resistance function are applied to low-rise buildings, particularly to the low-rise rural farm house structure in the new rural construction period, and the method is the key for promoting novel urbanization and new.
Therefore, the development of the assembled combined wall which is economical, practical, low in manufacturing cost and simple and convenient to construct and is suitable for low-rise buildings, particularly low-rise rural farmhouse structures in villages and small towns has very important practical significance and social and economic values.
The invention content is as follows:
the invention provides an assembled truss type light steel frame-punched thin steel plate-concrete combined wall, provides a method for manufacturing an assembled wall body with good bearing capacity and shock resistance for low-rise integrated houses and assembled houses, is suitable for being widely popularized in low-rise buildings with shock resistance fortification requirements, particularly low-rise rural houses in villages and small towns, and solves the problems that the structure of the existing rural houses lacks shock resistance measures and the shock resistance is weak. Meanwhile, the components are easy to assemble and construct on site, and the development target of new rural construction can be promoted to be completed.
In order to achieve the purpose, the invention adopts the following technical scheme:
an assembled truss type light steel frame-punched thin steel plate-concrete combined wall comprises a steel pipe concrete frame column (1), a steel pipe concrete frame beam (2), a punched thin steel plate (3), a steel pipe concrete truss rib (4), concrete (5), a connecting end plate (6) and a connecting bolt (7); the punching thin steel plate (3) is a steel plate with a hole punched by a punch through a die on a steel plate with the plate thickness not more than 5mm, the hole center distance is not less than 50mm, and the punching area is not less than 1/2 of the area of the punching thin steel plate (3); respectively welding and connecting end plates (6) at the positions of the top and the base of the steel pipe concrete frame column (1), and prefabricating bolt holes on the connecting end plates (6); the steel tube concrete frame column (1) is welded with the steel tube concrete frame beam (2) to form a combined wall light steel frame, a punching thin steel plate (3) is welded inside the frame, then steel tube concrete truss ribs (4) are arranged on two sides of the punching thin steel plate in a crossed mode, two ends of each steel tube concrete truss rib (4) are welded and fixed with the combined wall light steel frame, and therefore the combined wall steel frame is formed; erecting a formwork and pouring wallboard concrete (5), and curing to form an assembled truss type light steel frame-punched thin steel plate-concrete combined wall; during assembly, the combined wall is connected with an external structure through a connecting bolt (7).
The assembled truss type light steel frame-punched thin steel plate-concrete combined wall is characterized in that:
the steel pipe concrete frame column (1) and the steel pipe concrete frame beam (2) are square or rectangular steel pipes, the wall thickness of each steel pipe is not more than 8mm, the side length of the section of each steel pipe is not less than 50mm, and concrete is filled in the steel pipes. The steel pipe concrete has higher shearing bearing capacity, and the steel pipe concrete frame column (1) and the steel pipe concrete frame beam (2) are welded to form the combined wall light steel frame, so that the shearing strength of the wallboard is obviously improved.
The punching thin steel plate (3) is a steel plate with a circular hole, a square hole or a rectangular hole which is punched by a punch through a die, and the punching thin steel plate (3) is arranged in the middle of the light steel frame and is poured in the middle of the concrete (5). The punched thin steel plate (3) is welded and fixed with the wallboard steel pipe concrete frame after being positioned, and is poured in concrete to play a role of reinforcing ribs, but the construction is simpler than the construction of configured steel bars, and the punched thin steel plate has the characteristics of strong integrity, uniform meshes, processing, low cost and the like, improves the plane external rigidity of the wallboard, and improves the seismic capacity of the wallboard.
The steel pipe concrete truss ribs (4) are formed by filling concrete into square or rectangular steel pipes, the wall thickness of each steel pipe is not more than 5mm, and the wall steel pipe concrete truss ribs (4) which are arranged on two sides of the punching thin steel plate (3) in a crossed mode are combined with the wall light steel frame frames to form a wallboard truss stress framework; when the concrete (5) is poured, the steel pipe concrete truss ribs (4) are partially or completely poured in the wall boards. Due to the arrangement of the steel pipe concrete truss ribs (4), the bending resistance, the shearing resistance and the out-of-plane bearing capacity of the wallboard are increased, and the anti-seismic level of the wallboard is improved.
The casting thickness of the concrete (5) is 40-100 mm, and the concrete strength grade is C30-C60; the concrete (5) is common concrete, recycled concrete with different mixing amounts of recycled coarse aggregates or high-performance concrete. The recycled concrete is prepared from concrete aggregate obtained by crushing, cleaning and grading the waste concrete blocks after the old building is dismantled, the recycling and reduction treatment principle of the waste concrete is realized by adopting the recycled concrete, the effects of protecting the environment and saving resources can be realized, the social benefit is remarkable, and the national sustainable development is promoted. According to engineering requirements, high-performance concrete with the properties of cracking resistance, corrosion resistance and the like can be prepared.
The thickness of the steel plate adopted by the connecting end plate (6) is not less than 6mm, and bolt holes corresponding to the aperture of the connecting bolts (7) are machined in the connecting end plate. When the connecting end plate (6) is welded with the steel pipe concrete frame column (1), the reinforcing rib can be welded to strengthen the connection.
The connecting bolts (7) are not less than M16, the strength is not less than 8.8 grade, and when the combined wall is installed, the number of the connecting bolts (7) on each connecting end plate (6) is not less than 4.
Compared with the prior art, the assembled truss type light steel frame-punched thin steel plate-concrete combined wall has the following advantages:
(1) the assembled truss type light steel frame-punched thin steel plate-concrete combined wall provided by the invention is used as a stressed member in the structure, has better bearing capacity and shock resistance, is suitable for being widely popularized in low multi-story buildings with shock resistance fortification requirements, particularly low multi-story rural houses in villages, and promotes the completion of the development target of new rural construction.
(2) The combined wall is selectively arranged in the column network as an anti-seismic unit and is arranged at the weak stress position of the low-rise building structure, so that the lateral rigidity and the anti-seismic capacity of the building structure are increased, and the building bay and the layout are not influenced.
(3) The steel pipe concrete frame column, the steel pipe concrete frame beam and the steel pipe concrete truss ribs form a steel pipe concrete truss stress system in the wallboard, the damage and damage form of the wall body is changed, and the bearing capacity and the ductility of the wall body can be effectively improved.
(4) The design of the steel tube concrete frame beam column-shaped wall body light steel frame improves the integrity of the wallboard, makes up the problem that the use of the concrete thin wallboard is influenced by the angle knocking and the cracking which are easily caused in the hoisting, transporting and constructing processes at the frame position of the concrete thin wallboard component, and improves the quality of the assembled wallboard.
(5) The punched thin steel plate plays a role in reinforcing the concrete wallboard, but is simpler and easier to construct than a method for configuring steel bars, is easy to position, has the characteristics of strong integrity, uniform meshes, low cost and the like, is easy to process, improves the out-of-plane rigidity of the wallboard, and improves the seismic capacity of the wallboard.
(6) The steel pipe concrete and the punched thin steel plate form the steel skeleton of the wall plate, so that the bending resistance, the shearing resistance and the out-of-plane bearing capacity of the wall plate are increased, and the seismic performance of the wall plate is improved.
(7) The wallboard concrete layer is thin in thickness and light in dead weight, and transportation and assembly on a construction site are facilitated. Meanwhile, the steel tube concrete and the wallboard concrete can adopt green and environment-friendly recycled concrete, and are beneficial to promoting the national sustainable development target.
(8) The traditional anti-seismic wall is mostly a cast-in-place component, the combined wall is an assembled component, the combined wall is prefabricated in a factory, the pouring quality of the wallboard is guaranteed, the combined wall is directly installed on a building site, resources are effectively saved, energy consumption is reduced, and meanwhile, the construction time is greatly shortened. The assembled structure form can rapidly and effectively improve the anti-seismic performance of the house, has great promotion effect on the realization of housing industrialization and urbanization construction, is a research and development result of a novel combined structure agricultural house technology, and has an important effect on promoting the improvement of the traditional agricultural house structure technology.
Description of the drawings:
FIG. 1 is a partial schematic view of an assembled truss type light steel frame-punched sheet steel-concrete composite wall;
FIG. 2 is a partial schematic view of a steel frame of the fabricated truss type light steel frame-punched thin steel plate-concrete combined wall;
fig. 3 is a diagram showing the assembly effect of the assembled truss type light steel frame-punched thin steel plate-concrete composite wall.
In the figure: 1-a steel pipe concrete frame column; 2-a steel pipe concrete frame beam; 3-punching thin steel plate; 4-steel pipe concrete truss ribs; 5-concrete; 6-connecting the end plate; 7-connecting bolt.
The specific implementation mode is as follows:
the invention discloses an assembled truss type light steel frame-punched thin steel plate-concrete combined wall, which is illustrated in the attached drawings 1-3 and comprises the following manufacturing method:
the first step is as follows: pouring concrete in the steel pipe and curing to form a steel pipe concrete frame column, a steel pipe concrete frame beam and a wall steel pipe concrete truss rib of the wallboard; processing bolt holes corresponding to the diameters of the connecting bolts on the connecting end plates, and then respectively welding the connecting end plates to the top and the bottom of each steel pipe concrete frame column; and welding the steel pipe concrete frame column and the steel pipe concrete frame beam to form the light steel frame of the combined wall.
The second step is that: and welding a punched thin steel plate in the combined wall light steel frame, then arranging steel pipe concrete truss ribs on two sides of the punched thin steel plate in a crossed manner, and welding and fixing two ends of each rib on the combined wall light steel frame to form the combined wall steel frame.
The third step: and manufacturing a wallboard pouring template, configuring concrete, pouring the wallboard concrete, and curing to form the assembled truss type light steel frame-punched thin steel plate-concrete combined wall. When the combined wall is assembled, the combined wall is installed and connected with an external structure through a connecting bolt.
The above is a typical embodiment of the present invention, but the implementation of the present invention is not limited thereto. The dimensions of the structures and the selection of the materials listed in the invention can be selected according to actual needs, and are not listed.

Claims (8)

1. The assembled truss type light steel frame-punched thin steel plate-concrete combined wall is characterized in that: the steel pipe concrete truss structure comprises a steel pipe concrete frame column (1), a steel pipe concrete frame beam (2), a punching thin steel plate (3), a steel pipe concrete truss rib (4), concrete (5), a connecting end plate (6) and a connecting bolt (7);
the punching thin steel plate (3) is a steel plate with a hole punched by a punch through a die on a steel plate with the plate thickness not more than 5mm, the hole center distance is not less than 50mm, and the punching area is not less than 1/2 of the area of the punching thin steel plate (3);
respectively welding and connecting end plates (6) at the positions of the top and the base of the steel pipe concrete frame column (1), and prefabricating bolt holes on the connecting end plates (6); the steel tube concrete frame column (1) is welded with the steel tube concrete frame beam (2) to form a combined wall light steel frame, a punching thin steel plate (3) is welded inside the frame, then steel tube concrete truss ribs (4) are arranged on two sides of the punching thin steel plate in a crossed mode, two ends of each steel tube concrete truss rib (4) are welded and fixed with the combined wall light steel frame, and therefore the combined wall steel frame is formed; erecting a formwork and pouring wallboard concrete (5), and curing to form an assembled truss type light steel frame-punched thin steel plate-concrete combined wall; during assembly, the combined wall is connected with the external frame structure beam through the connecting bolt (7).
2. The fabricated truss type light steel frame-punched steel sheet-concrete composite wall as claimed in claim 1, wherein: the steel pipe concrete frame column (1) and the steel pipe concrete frame beam (2) are rectangular steel pipes, the wall thickness of each steel pipe is not more than 8mm, the side length of the section of each steel pipe is not less than 50mm, and concrete is filled in the steel pipes.
3. The fabricated truss type light steel frame-punched steel sheet-concrete composite wall as claimed in claim 1, wherein: the punching thin steel plate (3) is a steel plate with a circular hole or a rectangular hole punched by a die, and the punching thin steel plate (3) is arranged in the middle of the frame of the light steel frame of the wallboard and is poured in the middle of the concrete (5).
4. The fabricated truss type light steel frame-punched steel sheet-concrete composite wall as claimed in claim 1, wherein: the steel pipe concrete truss ribs (4) are formed by filling rectangular steel pipes with concrete, the wall thickness of the steel pipes is not more than 5mm, and the steel pipe concrete truss ribs (4) which are arranged on two sides of the punching thin steel plate (3) in a crossed mode form a wallboard truss stress framework together with a wall steel pipe concrete frame; when the concrete (5) is poured, the steel pipe concrete truss ribs (4) are partially or completely poured in the wall boards.
5. The fabricated truss type light steel frame-punched steel sheet-concrete composite wall as claimed in claim 1, wherein: the casting thickness of the concrete (5) is 40-100 mm, and the concrete strength grade is C30-C60.
6. The fabricated truss type light steel frame-punched steel sheet-concrete composite wall as claimed in claim 1, wherein: the thickness of the steel plate adopted by the connecting end plate (6) is not less than 6mm, and bolt holes corresponding to the aperture of the connecting bolts (7) are machined in the connecting end plate.
7. The fabricated truss type light steel frame-punched steel sheet-concrete composite wall as claimed in claim 1, wherein: the connecting bolts (7) are not less than M16, the strength is not less than 8.8 grade, and when the combined wall is installed, the number of the connecting bolts (7) on each connecting end plate (6) is not less than 4.
8. The fabricated truss type light steel frame-punched thin steel plate-concrete composite wall as claimed in any one of claims 1 to 7, which is fabricated by the following method:
the first step is as follows: pouring concrete in the steel pipe and curing to form a steel pipe concrete frame column, a steel pipe concrete frame beam and a steel pipe concrete truss rib of the wallboard; processing bolt holes corresponding to the diameters of the connecting bolts on the connecting end plates, and then respectively welding the connecting end plates to the top and the bottom of each steel pipe concrete frame column; welding the steel pipe concrete frame column and the steel pipe concrete frame beam to form a light steel frame of the combined wall;
the second step is that: welding a punched thin steel plate in the combined wall light steel frame, then arranging steel pipe concrete truss ribs on two sides of the punched thin steel plate in a crossed manner, and welding and fixing two ends of each rib on the combined wall light steel frame to form a combined wall steel frame;
the third step: manufacturing a wallboard pouring template, configuring concrete, pouring the wallboard concrete, and curing to form the assembled truss type light steel frame-punched thin steel plate-concrete combined wall; when the combined wall is assembled, the combined wall and the external frame structure beam are installed and connected through the connecting bolts.
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